About 120 baryons and baryon resonances are known, from the abundant nucleon with u
and d light-quark constituents up to the Ξ b−=(bsd), which contains one quark of each …

The composite nature of baryons manifests itself in the existence of a rich spectrum of
excited states, in particular in the important mass region 1–2 GeV for the light-flavoured …

The nucleus is one of the most multifaceted many-body systems in the Universe. It exhibits a
multitude of responses depending on the way one “probes” it. With increasing technical …

We present measurements of the differential cross section and Λ recoil polarization for the γ
p→ K+ Λ reaction made using the CLAS detector at Jefferson Lab. These measurements …

The reaction γ+ p→ K++ Σ+ π was used to determine the invariant mass distributions or “line
shapes” of the Σ+ π−, Σ− π+, and Σ 0 π 0 final states, from threshold at 1328 MeV/c 2 through …

This review treats the advances in Light Baryon Spectroscopy of the last two decades, which
were mainly obtained by measuring meson-production reactions at photon facilities all over …

We report the exclusive photoproduction cross sections for the Σ 0 (1385), Λ (1405), and Λ
(1520) in the reactions γ+ p→ K++ Y* using the CLAS detector for energies from near the …

The γ p→ η p reaction has been measured with the Crystal Ball and TAPS multiphoton
spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1 …

A review of the present understanding of η′ and η meson physics and these mesons as a
probe of gluon dynamics in low-energy QCD is presented. Recent highlights include the …

The ηN final state is isospin-selective and thus provides access to the spectrum of excited
nucleons without being affected by excited Δ states. To this end, the world database on eta …